I'm revising 3-4 chapters of the "anti-memoir" right now, so I'm especially attuned to good examples of the original form.
The first act in this episode of This American Life is a wry, tender, thought-provoking look at an assisted suicide as planned by an older couple: told from the perspective of the surviving wife, about her larger than life husband in his declining years with Alzheimer's.
It's wise in the details, honest where it hurts, and deep in its humanity.